Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

What is the difference between delete and delete[]

Amazon,

3 1657

What is the difference between the Reader/Writer class hierarchy and the InputStream/OutputStream class hierarchy?

1177

What is the purpose of the System class?

1043

Explain about oops concepts.

Aditi Placement Service,

1175

Difference between string s= new string (); and string s = "abv";?

Cap Gemini,

1264

Explain about complier design(phases)

Aditi Placement Service,

1141

Explain about doubly linked list

Aditi Placement Service,

1098

What is compiler and what its output.

Cognizant,

1204

What is runtime locatable code?

Cognizant,

1504

What restrictions are placed on method overriding?

1246

What is an array in java?

1289

Explain how can you debug the Java code?

BirlaSoft,

1120

Explain the difference between an Interface and an Abstract class?

BirlaSoft,

1236

Explain the purpose of garbage collection in Java?

BirlaSoft,

1084

Explain what is Marker interface?

BirlaSoft,

1141

Post New Core Java Questions

Un-Answered Questions { Core Java }

What are the advantages of arraylist over arrays?

1155

Difference between stack and queue?

1141

What is arraylist e?

1150

What is the point of polymorphism java?

1073

What is numeric function?

1072

What is java literals?

1207

What is :: operator in java?

1034

What is a instance variable?

1137

What is wrapper class example?

1051

What is a byte array?

1151

What is maximum size of arraylist in java?

1095

What are the benefits of immutable objects?

1058

What is the difference between stringbuffer and stringbuilder class?

1163

What is instanceof keyword?

1272

What is an argument java?

1028

For More Un-Answered { Core Java } Questions Click Here